false negatives

Spam that is mistaken for legitimate email.

false positives

Legitimate email messages that are mistaken as spam.


See pharming .

file infector virus

A type of computer virus that attaches itself to a program file. It executes when the file is run.

filename extension

A three-character suffix that is part of a computer file name (for example, .jpg and .doc ). Common to files on a PC.


A device or program that blocks outsiders from accessing a computer connected to the Internet. Some firewalls also monitor data traffic outbound from a computer or network.


Programming stored on a chip inside a device (such as a network router) that controls it.


See phishing.


Software offered to the public free.

Absolute Beginners Guide To. Security, Spam, Spyware & Viruses
Absolute Beginners Guide to Security, Spam, Spyware & Viruses
ISBN: 0789734591
EAN: 2147483647
Year: 2005
Pages: 168

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